import javax.sound.sampled.Port;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class TcpServer {
    private ServerSocket  serverSocket= null;

    public TcpServer(int port) throws IOException {
        serverSocket = new ServerSocket(port);
    }

    public void start() throws IOException {
        System.out.println("服务器启动");
        ExecutorService executorService = Executors.newCachedThreadPool();
        while(true){
            Socket clientSocket = serverSocket.accept();

            executorService.submit(()->{
               processConnenction(clientSocket);
            });
        }

    }

    private void processConnenction(Socket clientSocket) {
        System.out.printf("[%s:%d] 客户端上线!\n",clientSocket.getInetAddress(),clientSocket.getPort());
        try(InputStream inputStream = clientSocket.getInputStream();
            OutputStream outputStream = clientSocket.getOutputStream()) {
            Scanner scanner = new Scanner(System.in);

            PrintWriter writer = new PrintWriter(outputStream);

            while(true){
                if(!scanner.hasNext()){
                    System.out.printf("[%s:%d] 客户端下线",clientSocket.getInetAddress(),clientSocket.getPort());
                    break;
                }
                String request = scanner.next();
                String response = process(request);
                


            }





        } catch (IOException e) {
            throw new RuntimeException(e);
        }

    }

    private String process(String request) {
        return request;
    }


}
